The wheels are 1 1/8\" apart - so what gauge is that? I know nothing about trains so can only describe what I see.Engine measures about 8 1/2\" long x 2 1/2\" wide x 3\" tall. The inside wide-up part looks clean and works well. Cars measure about 6\" long x 1 3/4\" wide x 2 3/4\" tall. There is 2 MONTCLAIR PULLMANS, 1 OBSEVATION PULLMAN, (it needs the wheel and connectors), and a NEW YORK CENTRAL CAR. Please see above for the missing or need to be cleaned sections. Any questions I will be happy to answer what I can. Engine is heavy- steel- I think, not tin like the cars.

Train will come well packed & insured.